Okay, I confess! This blog has nothing to do with Star Wars...but neither did my "chew"bacca sandwich I had today.
No, this is about the COMMA from my favorite blogger, Grammar Girl.
She has this great little picture that summaries the comma perfectly. This is not an exhaustive guide but if you compare these 15 rules with the Writer Digest Table Top Guide to Writing which has 258 rules for the comma--it is not bad.
If you like this then check out Grammar Girls Writing Guide for Students.
You may have noticed it is more than 5 points...but come on. It is hard enough getting it down to 15.